EP2644959A2 - Verbesserungen bei oder in Zusammenhang mit Rohrkopplungen - Google Patents

Verbesserungen bei oder in Zusammenhang mit Rohrkopplungen Download PDF

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Publication number
EP2644959A2
EP2644959A2 EP13161443.0A EP13161443A EP2644959A2 EP 2644959 A2 EP2644959 A2 EP 2644959A2 EP 13161443 A EP13161443 A EP 13161443A EP 2644959 A2 EP2644959 A2 EP 2644959A2
Authority
EP
European Patent Office
Prior art keywords
tube
coupling
coupling body
seal
collet
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP13161443.0A
Other languages
English (en)
French (fr)
Other versions
EP2644959B1 (de
EP2644959A3 (de
Inventor
Timothy Steven Guest
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
John Guest International Ltd
Original Assignee
John Guest International Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by John Guest International Ltd filed Critical John Guest International Ltd
Publication of EP2644959A2 publication Critical patent/EP2644959A2/de
Publication of EP2644959A3 publication Critical patent/EP2644959A3/de
Application granted granted Critical
Publication of EP2644959B1 publication Critical patent/EP2644959B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L37/00—Couplings of the quick-acting type
    • F16L37/08—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members
    • F16L37/084—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members combined with automatic locking
    • F16L37/086—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members combined with automatic locking by means of latching members pushed radially by spring-like elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L37/00—Couplings of the quick-acting type
    • F16L37/08—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members
    • F16L37/084—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members combined with automatic locking
    • F16L37/092—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members combined with automatic locking by means of elements wedged between the pipe and the frusto-conical surface of the body of the connector
    • F16L37/0925—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members combined with automatic locking by means of elements wedged between the pipe and the frusto-conical surface of the body of the connector with rings which bite into the wall of the pipe
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L21/00—Joints with sleeve or socket
    • F16L21/08—Joints with sleeve or socket with additional locking means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L37/00—Couplings of the quick-acting type
    • F16L37/08—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members
    • F16L37/084—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members combined with automatic locking
    • F16L37/092—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members combined with automatic locking by means of elements wedged between the pipe and the frusto-conical surface of the body of the connector
    • F16L37/0926—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members combined with automatic locking by means of elements wedged between the pipe and the frusto-conical surface of the body of the connector with an inner support sleeve arranged within the pipe
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L37/00—Couplings of the quick-acting type
    • F16L37/08—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members
    • F16L37/084—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members combined with automatic locking
    • F16L37/092—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members combined with automatic locking by means of elements wedged between the pipe and the frusto-conical surface of the body of the connector
    • F16L37/0927—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members combined with automatic locking by means of elements wedged between the pipe and the frusto-conical surface of the body of the connector the wedge element being axially displaceable for releasing the coupling
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L37/00—Couplings of the quick-acting type
    • F16L37/08—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members
    • F16L37/12—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members using hooks, pawls or other movable or insertable locking members
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L2201/00—Special arrangements for pipe couplings
    • F16L2201/10—Indicators for correct coupling

Definitions

  • This invention relates to tube couplings which may be single or multiple tube couplings providing in-line, elbow or T-couplings or tube closures.
  • the present invention relates to a tube coupling to receive and hold a tube, the coupling comprising a coupling body having a throughway open at one end to receive a portion of the tube, a collet in the coupling body to allow insertion of the tube into the collet and having a plurality of legs with outer surfaces that engage with a tapered surface in the coupling body which urges the legs inwardly to resist withdrawal of the tube.
  • a coupling will subsequently be referred to as "of the kind described”.
  • a coupling of the kind described is our "Speedfit" connector as disclosed in GB 1 520 742 .
  • This coupling has met with significant success over many years.
  • the present invention is designed to extend the use of such a connector.
  • the connector works on the principle that, as the tube is inserted, the legs of the collet expand radially to allow entry of the tube and, in doing so, grip the tube sufficiently for the collet to be pulled into the tapered surface if the tube is partially withdrawn. As the force increases to remove the tube, the interference between the taper and the collet increases, thereby increasing the grip on the tube.
  • a coupling of the kind described is characterised by a biasing member which provides a biasing force without the tube inserted to urge the legs axially onto the tapered surface.
  • the connector can grip on a much larger variety of pipe outer diameters.
  • the biasing member has the effect of urging the collet legs along the tapered surface to a position with a diameter where the taper is narrower and hence the initial position of the collet legs defines a narrower bore. If a larger diameter tube is inserted, this will simply push the collet to a wider portion of the taper against the action of the biasing member and the collet will function as described above in relation to the prior art. However, when a smaller diameter tube is inserted, the biasing means will act to maintain the collet at a smaller diameter portion of the taper thereby ensuring that the grip on the smaller diameter portion is not compromised.
  • the action of the biasing member is to maintain the collet legs at the part of the taper appropriate for the diameter of the tube to be inserted.
  • the coupling body may be provided with a seal arranged, in use, to seal on the outer diameter of the tube. Under such circumstances, this seal must be able to seal the different diameter tubes that can be gripped by the collet.
  • the seal could be an O-ring made of a thicker and more resilient material than is conventional, or the coupling body could be designed to receive O-rings of different diameters.
  • the seal may have a radially projecting lip that is deflected upon insertion of the tube by an amount proportional to the outer diameter of the tube.
  • the coupling could be designed as an inner diameter coupling.
  • the coupling preferably comprises a tubular insert receivable in the end of the tube, the tubular insert having a first portion insertable into the tube and a second portion receivable in the coupling body, the first portion having a seal to seal, in use, with the inner diameter of the tube, and the second portion having a seal to seal with the coupling body.
  • inserts may be made available, each of which has the same diameter of the second portion such that it can seal with a standard seat in the coupling body, while the outer diameter of the first portion may vary between such inserts.
  • a first insert is used with a larger diameter first portion to provide an adequate seal on the inner diameter of the tube while the second portion fits in the standard seat in the coupling body, the biasing member described above and provides adequate gripping on the larger diameter tube.
  • a second insert is used with a smaller outer diameter for the first portion to seal against the inner diameter of the tube. Again, the second portion seals with the standard seat in the coupling body and the biasing member ensures that the collet legs grip the smaller diameter tube as mentioned above.
  • Such a design of inner diameter connector is widely used with "composite" pipe in larger buildings such as office blocks.
  • the composite pipe is multi-layer tubing with plastic (typically PEX) on the inside and outside with a layer of aluminium in the middle.
  • PEX plastic
  • the fitting needs to seal on the inner diameter of the pipe to keep the exposed aluminium layer at the end of the pipe dry.
  • This forms a second aspect of the present invention which is a kit comprising a coupling according to the first aspect of the present invention and at least two tubular inserts, each insert being receivable in the end of the tube, the tubular insert having a first portion insertable into the tube and a second portion receivable in the coupling body, the first portion having a seal to seal, in use, with the inner diameter of the tube, and the second portion having a seal to seal with the coupling body, wherein the first portions of the two inserts have different diameters.
  • This kit allows a user to be in a position to make fittings to pipes of a variety of diameter tubes without needing to carry a wide range of fittings. This is highly desirable when, as often happens, a user arrives at an installation site and only knows what type of tubes are present after they have exposed them.
  • the kit contains more than two tubular inserts with first portions of different diameters to allow connection to a greater range of tubes. Also, preferably, the kit contains a double-ended coupling body and at least two inserts of each diameter of first portion to enable a double-ended connection to be made to a single tube.
  • the kit also comprises at least one of a tool to restore the circular diameter of the tube, a tool to create a bevelled edge on the inner wall of tube and a tool to deburr the outer edge of the tube.
  • a single tool may provide more than one of these functions.
  • an operator with this kit can arrive at a site without prior knowledge of the existing tubes and couplings. Having cut the tube he/she can reshape the cut end, create a bevelled edge and and/or deburr the pipe to prepare it for the new coupling. Then, despite only carrying a relatively small number of components he/she can make the new coupling.
  • the connector can incorporate a coupling according to the invention at one end and a standard connector on the other end. This can allow conversion from an inner diameter to an outer diameter system.
  • the biasing member may be positioned anywhere in which it is able to provide the necessary biasing force. For example, it may be outside the coupling body such that it acts between the end of the coupling body and a shoulder on the collet. However, preferably the biasing member is within the coupling body as there is a greater axial distance available here to accommodate the member. There are a number of ways in which the member can be configured. It may, for example, be a sleeve of elastomeric material.
  • a rigid sleeve could be provided between the seal and the end of the collet which compresses the seal to provide a biasing force which is transmitted via the sleeve to the collet legs.
  • the biasing member is spring (e.g. a helically coiled spring, an undulating ring or a ring of opposed crosses) supported at one end within the coupling body and at the opposite end on the ends of the collet legs.
  • spring e.g. a helically coiled spring, an undulating ring or a ring of opposed crosses
  • the coupling body is preferably provided with a locking cover which is received on the outside of the coupling body and is movable between a first position in which, with the tube inserted, axial movement of the collet is prevented and a second position in which, with the tube inserted, axial movement of the collet is permitted.
  • This locking sleeve prevents accidental movement of the collet to a position in which the tube is dislodged.
  • the coupling body is preferably provided with a window, allow for visual inspection of the tube within the coupling.
  • the locking sleeve is configured to reveal the window in the first position and to cover the window in the second position. This allows the user to determine that the tube has been fully inserted into the correct position and also provides a visual indication of whether or not the locking sleeve is locked.
  • the connectors illustrated are in-line connections.
  • the right-hand side of the connector may have the same configuration or may be provided with a different connection mechanism as necessary.
  • the same connector design may equally be applied to elbow or T-couplings or tube closures where again one or more of the connections is as described and others may be of different designs as necessary.
  • the connector comprises a coupling body 10 having a through way 11 open at one end 12 to receive internally an end portion of a tube T with externally a locking cap 13 which has a central opening 14 in line with the throughway 11.
  • a collet 17 is received an in an open end 18 of the coupling body 10.
  • the collet comprises an annular portion 19 extending through the opening 18 and having an outwardly projecting annular flange 20.
  • the portion of the collet 17 extending into the throughway 11 in the coupling body 10 has axially extending resilient legs 21 which terminate in heads 22 with internal barbs or teeth 23 on the inner side thereof to grip the tube extending through the collet.
  • Such collets are well known in the art.
  • a tapered cam surface 24 is formed within the coupling body 10 and tapers inwardly towards the open end 12.
  • the heads 22 of the collet 17 engage with the tapered cam surface 24 such that they are compressed radially inwardly as the collet is drawn axially outwardly, thereby causing the barbs 23 to grip and engage the tube T extending through the collet 17.
  • the greater the force trying to pull the tube T out of the connector the more the collet 17 is pulled to the left in the Figures and the greater the degree of compression provided to the heads 23 by the tapered cam surface 24.
  • the throughway 11 is provided with a shoulder 25 facing the open end 12 of the coupling body 10.
  • a helical spring 26 is provided within the coupling body 10 surrounding the throughway 11 and resting on the shoulder 25 at one end and the heads 22 of the collet 17 at the opposite end.
  • the spring 26 is in compression such that it urges the collet towards the open end 12 (i.e., to the left in the Figures). This has the effect of forcing the heads 22 to a narrower part of the tapered cam surface 24.
  • Fig. 1B shows the insertion of the tube T for an internal diameter (ID) connection.
  • ID internal diameter
  • the insert 30 prior to being inserted into the coupling body 10, an insert 30 is fitted into the end of the tube T.
  • the insert 30 has a throughway 31 which, upon insertion, is aligned with the throughway 11 in the coupling body.
  • the insert 30 has a first portion 32 of narrower diameter which fits inside a tube T and is provided with an O-ring 33 to seal against the inner wall of the tube T.
  • the second portion 34 of the insert 30 remains outside the tube. This second portion is provided with an annular flange 35 providing a shoulder which abuts against the end of the tube.
  • the second portion 34 Towards the end furthest from the end of the tube T, the second portion 34 is provided with an O-ring 36 which seals against the coupling body 10 as described below.
  • the tube T shown in Fig. 1B is the largest tube that the connector can accommodate as can be seen by the close fit between the tube T and the opening 14 on the locking cap 13. Because the tube T has a relative large diameter, upon insertion, it engages with the inner surface of the collet 17 and the barbs 23 and pushes the heads 22 of the collet to a position in which they are at or close to the widest part of the tapered surface 24. At this position, the collet and tapered surface are configured to provide the optimum force against withdrawal of a tube of larger diameter.
  • Fig. 1D shows the same connector being used for a smaller diameter tube T'.
  • a smaller diameter insert 30' is used. This is the same as the insert 30 as previously described, except that the outer diameter of the first portion 32 and consequently the O-ring seal 33 are smaller so as to fit within and seal against the inner diameter of the smaller diameter tube T'.
  • the second portion 34 is identical to the second portion described above and seals in the same manner.
  • the locking sleeve 13 is rotated from the unlocked position shown in Figs. 1A and 1B to the locked position shown in Figs. 1C and 1D in which it has at least one port which is now in a position to obstruct the collet 17 as is known in the art.
  • the locking sleeve 13 has a scalloped lower edge 40 such that, in the unlocked position, a window 41 in the coupling body is exposed allowing a user to see whether or not the tube has been fully seated.
  • the window 41 is covered as shown in Figs. 1C and 1D providing a visual indication to the user that the coupling is locked.
  • the connector shown in Fig. 2A is the connector described above. Also included as part of the kit are a number of inserts 30A-30D which correspond to the inserts 30 and 30' described above.
  • the inserts come in pairs as identified by the matching letters, and each pair is identical except that the outer of each first portion 32A-32D is different (increasing from 30A to 30D).
  • the second portion 34 is as previously described and fits within the connector shown in Fig. 2A .
  • the kit is also supplied with a tool 50.
  • the tool 50 is provided with four projecting tubular elements 51A-51B arranged in a cruciform. Each of the elements is labelled with a letter A-D which corresponds to the corresponding letter on the inserts. The outermost end of each element has a bevelled outer edge 52 which provides a lead-in surface. At the opposite end, each element has a pair of cutters 53. There may be more or less than four sets of inserts 30 in which case, the number of tubular elements may be changed accordingly.
  • the user When retro-fitting a connector, the user will first cut the existing tube and this will generally cause the end of the cut tube to be squashed to some extent. The user can determine visually the rough size of the inner diameter of the cut tube and can then insert the appropriate tubular element 51A-51B. The bevelled edge 52 will facilitate the insertion of the tubular element into the cut end of the tube, and the continued insertion will restore the circularity of the tube in the vicinity of the cut end. The tube is pushed fully onto the tubular element such that it engages cutters 53. Rotation of the tube will create a chamfer on the inner diameter of the tube. If the user has selected an extension which is too big for the inner diameter of the tube, it will not fit, while an extension which is too small will feel loose and will encourage them to try a larger diameter extension to see if this will fit.
  • the tool 50 is also provided with an upwardly facing surface with reference to Fig. 2C with an inner cylindrical extension 54 again having a bevelled outer edge 55.
  • This bevelled edge 55 provides a lead in into the tube.
  • the inner cylindrical extension 54 is surrounded by a number of cutters 56, two of which are shown in Fig. 2C . These are supported by an outer cylinder 57. These cutters 56 are positioned to engage with the outer edge of the cut tube once it has been restored to its circular shape, such that rotation of the tool about the axis of the cylindrical extension 54 on which it is located causes the cutters 55 to scrape the outer edge of the tube thereby deburring the tube.
  • the bevelled edge 55 and cutters 56 may be designed such that they fit all diameters of the tube with which the kit is designed to be used.
  • the bevelled edge 55 and cutters 56 on one side of the tool may be sized to deal with some of the sizes of the inserts, while the opposite side of the tool may have a similar arrangement sized to deal with the remaining sizes of insert.
  • the user can arrive at a site without any knowledge of the diameters of the tubes that they will be dealing with.
  • the tool 50 can be used to restore the circular shape of the tube ends and also to provide the user with an idea of which size of inserts they need to use to re-make the connection.
  • the bevelled edge 54 and cutters 55 enable them to quickly clean the end of the pipe and prepare it to receive the inserts whereupon they can insert the appropriate insert into the cut ends of the pipe and attach the connector as described above.
  • FIG. 3 A second example of a connector is shown in Fig. 3 .
  • Fig. 1 was for an ID connection
  • Fig. 3 is for an outer diameter (OD) connection.
  • a cartridge ring 60 forms part of the coupling body 10 and is held in place by anchoring teeth 61. It could equally be welded in place.
  • annular seal 62 within the coupling body. This is positioned distally of the helical spring 26 to surround the throughway 11 and sits on a shoulder 63 which faces the open end 12. The end of the annular seal 62 facing the open end forms the shoulder 25' on which the spring 26 sits.
  • the annular seal 62 has an annular lip 64 which projects radially inwardly and is inclined away from the open end 12.
  • the lip 64 tapers inwardly towards its radially innermost edge.
  • the lip 64 When a tube with a relatively large outer diameter is inserted, the lip 64 is deformed radially outwardly to a relatively large extent. On the other hand, a relatively small tube would provide a relatively small deflection of the lip 64. In either case, the direction in which the lip projects and the tapering nature of the lip ensure that an adequate seal is maintained for a range of tube diameters.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Quick-Acting Or Multi-Walled Pipe Joints (AREA)
EP13161443.0A 2012-03-29 2013-03-27 Verbesserungen bei oder in Zusammenhang mit Rohrkopplungen Active EP2644959B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GBGB1205575.2A GB201205575D0 (en) 2012-03-29 2012-03-29 Improvements in or relating to tube couplings

Publications (3)

Publication Number Publication Date
EP2644959A2 true EP2644959A2 (de) 2013-10-02
EP2644959A3 EP2644959A3 (de) 2017-11-15
EP2644959B1 EP2644959B1 (de) 2020-08-19

Family

ID=46159927

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13161443.0A Active EP2644959B1 (de) 2012-03-29 2013-03-27 Verbesserungen bei oder in Zusammenhang mit Rohrkopplungen

Country Status (5)

Country Link
US (1) US9909701B2 (de)
EP (1) EP2644959B1 (de)
KR (1) KR102072842B1 (de)
ES (1) ES2812510T3 (de)
GB (1) GB201205575D0 (de)

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WO2020211963A1 (en) 2019-04-18 2020-10-22 Husqvarna Ab Hose connector

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GB201317952D0 (en) 2013-10-10 2013-11-27 Guest John Int Ltd A connector for connecting to a tube
GB201317990D0 (en) 2013-10-11 2013-11-27 Guest John Int Ltd A conncetor
US10422451B2 (en) * 2014-09-10 2019-09-24 International Business Machines Corporation Tapering couplers for connecting fluid flow components
US9671052B2 (en) * 2015-10-27 2017-06-06 Whirlpool Corporation Collet securing device for joining two fluid lines and providing lateral support at the connection of the two fluid lines
NZ759048A (en) * 2018-02-01 2022-11-25 Rifeng Entpr Foshan Co Ltd Pipe fitting joint assembly
EP3784946A4 (de) * 2018-04-24 2022-01-12 Reliance Worldwide Corporation Fluidverbinder
USD934395S1 (en) * 2019-04-03 2021-10-26 Jacob Friedriech Push fit connector for communication pipes
JP1668673S (de) * 2019-07-29 2020-09-23
JP1668675S (de) * 2019-07-29 2020-09-23
US11578826B1 (en) * 2019-10-18 2023-02-14 Edward Avetisian Pipe connector
GB202214413D0 (en) * 2022-09-30 2022-11-16 Reliance Worldwide Corporation Uk Ltd A tube connector

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020211963A1 (en) 2019-04-18 2020-10-22 Husqvarna Ab Hose connector

Also Published As

Publication number Publication date
US20130257036A1 (en) 2013-10-03
GB201205575D0 (en) 2012-05-16
US9909701B2 (en) 2018-03-06
AU2013202170B2 (en) 2015-10-29
EP2644959B1 (de) 2020-08-19
EP2644959A3 (de) 2017-11-15
AU2013202170A1 (en) 2013-10-17
KR102072842B1 (ko) 2020-02-03
ES2812510T3 (es) 2021-03-17
KR20130111447A (ko) 2013-10-10

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